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Finding the Fourth Proportional to 560,819.70, 773,902.08 and 319,097.34

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Solution

The fourth proportional to 560,819.70, 773,902.08 and 319,097.34 is: 440,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,819.70 : 773,902.08 = 319,097.34 : x
  2. Step 2: Convert to fraction form
    560,819.70/773,902.08 = 319,097.34/x
  3. Step 3: Cross multiply
    560,819.70x = 773,902.08 × 319,097.34
  4. Step 4: Simplify right side
    560,819.70x = 246,950,095,148.47
  5. Step 5: Solve for x
    x = 246,950,095,148.47/560,819.70
  6. Step 6: Final answer
    x = 440,337.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.